LONG BEACH >> A 49-year-old Chinese national involved in a computer hacking scheme to steal trade secrets about the Long Beach-assembled Boeing C-17 military cargo plane and other aircraft has been indicted by a federal grand jury, the U.S. Attorney’s Office announced Friday.

Businessman Su Bin — who also went by Stephen Su, Stephen Subin and Steven Subin — is being held in British Columbia, Canada, on a provisional arrest warrant submitted by the United States. He is expected to be extradited to Los Angeles. He could face up to 30 years in prison for the cyber crime if convicted.

Su, who owns and manages Lode-Tech, an aviation technology firm with offices in China and Canada, was in the process of applying for Canadian citizenship when he was arrested.

The five-count indictment, which was returned Thursday and filed with the U.S. Central District Court, says Su allegedly conspired with two others to hack and take confidential information about parts and the performance of the Boeing C-17 military cargo plane, Lockheed Martin’s F-22 and F-35 fighter jets and other military programs.

The hacking allegedly took place from 2009 to 2013, according to a June 27 complaint filed in Los Angeles by the FBI, which conducted the investigation with the Air Force Office of Special Investigations.

According to the complaint, Su would communicate with two co-conspirators using multiple email accounts, highlight file names he considered valuable and ask the co-conspirators to steal that information. The hackers apparently gained access to computers maintained in Orange County, according to the complaint.

In one instance in 2012, a co-conspirator drafted and edited a document that described the unlawful acquisition of 65 gigabytes of data with 630,000 files and 85,000 file folders with scans, drawings and other technical details about the C-17, according to the indictment.

The indictment also detailed an image sent to Su in 2010 of “a computer monitor displaying a presentation related to training on an F-22 component used in launching missiles.”

Su would then sell that data to Chinese entities, including state-owned companies, for profit, according to the complaint.

The two unnamed individuals allegedly involved with Su have not been indicted.

The U.S. Attorney’s Office, which declined further comment, stated that other defense contractors were involved but did not name them.

Lockheed Martin said in a statement Friday that the company is “supporting the authorities on this matter.”

Boeing could not be reached for comment on the indictment Friday.

In June,when the complaint was first made public, Boeing told Canada’s CBC News in a statement that it “cooperated with investigators and will continue to do so to hold accountable ‘individuals who perpetrate economic espionage or trade secret theft against U.S. companies.’ ”

“We appreciate that the government brought its concerns about a potential compromise of our protected computer systems to our attention,” the Boeing statement said.